Liquid-spraying device.



Patented Nov. 20, I900. J. P. JOHNSTON. LIQUID SPRAYING DEVICE.

(Applicatio'n filed Sept. 15, 1899.]

(No Model.)

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UNITED STATES ATENT OFFICE.

JOHN P. JOHNSTON, OF OAK PARK, ILLINOIS, ASSIGNOR TO HIMSELF AND EDWARD E. MORRELL, OF SAME PLACE.

LlQUlD-SPRAYING DEVICE.

SPECIFICATION forming part of Letters Patent No. 662,236, dated November 20, 1900.

Application filed September 15, 1899- Serial No. 730,536- (No model.)

To aZZ whont it wtayooncern:

Be it known that I, J OHN P. JOHNSTON, a citizen of the United States, residing at Oak Park, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Liquid-Spraying Devices, of which the following is a specification, reference being bad to the accompanying drawings.

My invention relates to apparatus that may be used for spraying or feeding liquids of various kinds and which will efficiently spray the oil as it is introduced.

What I regard as new will be set forth in the claims.

In the accompanying drawings, Figure 1 is an enlarged sectional View of the liquid spraying or feeding devices, and Fig. 2 is a section 011 line 3 3 ofFig. 1 looking up.

Referring to the drawings, 18indicates the spraying or feeding apparatus, which may be supported in any suitable manner from a feed pipe or tube 19, that will serve as an inlet or conductor for the liquid to be sprayed.

The spraying device or apparatus coniprises a cylinder 30, having its lower end of less diameter than its upper end and carrying at its contracted lower end a nozzle 31, provided with perforations 32 for the passage of the liquid. The nozzle 31 is preferably screwed upon the lower end of the cylinder to permit of its removal. At its upper end the cylinder 30 carries a head 33, screwed therein or thereupon. The head 33 is provided with an annular flange 34, which projects into the cylinder 30 and has in its lower face a series of cups or depressions 35, as shown in the drawings. Within the annular flange 34 is a hardened bearing-plate 36, hav ing a concave channel 37, as shown in Fig. 1. The cylinder 30 is supported from the lower end of the tube 19 upon antifriction-balls 38, which run in the channel 37 and are supported by a bearing-plate 39, having a similar channel 40, as shown in Fig. 1. The bearing-plate 39 is fitted closely upon the tube 19 and rests upon a nozzle 41, screwed upon the lower end of the tube 19 and keyed thereto by a pin 42. The tube 19 is stationary,

and consequently the bearing-plate 39 is also stationary.

43 indicates a hardened cylinder which is fitted upon the tube 19 near the lower endthereof and forms a bearing for the head 33, which rotates,as will be hereinafter described. The head 33 is provided with an upwardlyextending annular flange 44, which receives a bushing 45, fitted closely upon the cylinder 43. The latter cylinder is held in place bya collar 46, fitted upon the tube 19 immediately;

49 indicates a valve-stem which extends through the tube 19 from end to end, said valve-stem having at its lower end a conical or needle valve 50, adapted to be seated in a suitable seat in the lower end of the nozzle 41, as shown in Fig.1. The upper end of the valve-stein 49 passes beyond the upper end of the tube 19 and may be provided with a hand-wheel. Not shown.)

The operation of this feeding and spraying apparatus is as follows: The feeding device 7 being in the proper position liquid is introduced to tube 19, down which it flows under a pressure of from fifteen to eighty pounds to the square inch when oil is to be sprayed. A small part of the liquid, usually about onethird of the quantity to be supplied, passes down through the nozzle 41, the needle-valve being properly adjusted to that end by operating its hand-wheel. The remaining twothirds passes through pipe 48 and is discharged with considerable force, depending on the pressure, into the cups 35, causing the head 33 to rotate inthe direction indicated by the arrow in Fig. 2. The rotation of the head spreads the liquid over the interior surface of the cylinder 30, which rotates with the head 33. The rotation of the cylinder serves to scatter the liquid and causes it to hug the interior surface thereof. The liquid gradually passes down and out through the holes 32 of the nozzle 31 and is sprayed by the rotation of said nozzle.

If when the apparatus is in operation it should be found that the proper quantity of liquid is not being supplied, the quantity may be varied without changing the pressure by adjusting the needle-valve 50, and in practice I have found that said valve provides sufiicient degree of variation for all practical purposes, so that it is practically never necessary to vary the pressure of the liquid in order to properly regulate the quantity of liquid supplied. To adapt the apparatus for purposes requiring a very much greater or less quantity of liquid, it is necessary simply to vary the size of the pipe 48 through which the liquid is discharged against the cups; but under ordinary circumstances all necessary variation may be secured by simply adj usting the needle-valve.

Myinvention includes such alterations and modifications as would occur to those familiar with the art and is not limited to the specific devices or arrangement illustrated and described except in so far as such features are specifically claimed.

That which I claim as my invention, and desire to secure by Letters Patent, is-

1. In a liquid-spraying apparatus, the combination of a feed-pipe, a rotary cylinder, means for rotating said cylinder by the flow of the liquid thereinto, one or more passages for the discharge of the liquid from said cylinder, and means for varying the quantity of liquid supplied to said cylinder without varying the speed of its rotation, substantially as described.

2. In a liquid-spraying apparatus, the combination of a feed pipe, a rotary cylinder, means for injecting liquid tangentially into said cylinder to elfect its rotation, additional means for supplying liquid to said cylinder, and one or more passages for the discharge of liquid from said cylinder, substantially as described.

3. In a liquid-spraying apparatus, the combination of a feedpipe, a rotary cylinder, means operated by the flow of the liquid thereinto for ,rotating said cylinder, additional means for supplying liquid to said cylinder, and one or more passages for the discharge of the liquid from said cylinder, substantially as described.

4. In aliquid-feeding apparatus, the combination of a spraying device operated by the flow of liquid, means for supplying liquid under pressure to said spraying device, and means for varying the quantity of liquid supplied to the spraying device without varying the pressure of the liquid therein, substantially as described.

5. In a liquid-feeding apparatus, the combination of a spraying device, means for conducting liquid to said spraying device, a plurality of passages for admitting liquid to said 'spraying device, anda valve governing the admission of liquid to one of said passages and not another, substantially as described.

6. In aliquidfeeding apparatus, the combination of a rotary cylinder, a supply-pipe, a plurality of passages for admitting liquid from said pipe to said cylinder, and a valve governing the admission of liquid to one of said passages and not another, substantially as described.

7. In a liquid-feeding apparatus the combination of a spraying device, means for conducting liquid to said spraying device, a plurality of passages for admitting liquid to said spraying device, a valve governing the admission of liquid to one of said passages and not another, and means for operating said spraying device'by the flowof liquid, substantially as described.

8. In a liquid-feeding apparatus, the combination of a rotary cylinder, 3. supply-pipe for conducting liquid to said cylinder, means for injecting liquid into said cylinder tangentially, separate means for discharging liquid into said cylinder, and a valve for controlling the latter discharge, substantially as described. I

9. In aliquid-feedin g apparatus, the combination of a rotary cylinder having an outlet or outlets for the discharge of liquid at or near the lower end of the cylinder, a pipe communicating with said cylinder for supplying liquid thereto, means operated by the flow of liquid for rotating said cylinder, and ballbearings supporting said cylinder from said supply-pipe, substantially as described.

10. In a liquid-feeding apparatus, the combination of a rotary cylinder having a series of cups annularly arranged, a supply-pipe, and a pipe affording communication between said supply-pipe and said cylinder and arranged to discharge liquid from said pipe into said cups tangentially, substantially as described.

11. In a liquid-feeding apparatus, the combination of a rotary cylinder having a series of cups annularly arranged, a supply-pipe, a pipe aifording communication between said supply-pipe and said cylinder and arranged to discharge liquid from said pipe into said cups tangentially, and a separate valved passage between said supply-pipe and said cylinder, substantially as described.

12. In a liquid-feeding apparatus, the combination of a supply-pipe having an external sleeve fitted upon the lower end thereof, a retary cylinder having its upper end fitted upon said sleeve, bearings supporting said cylinder and permittingits rotation, and means for discharging liquid from said supply-pipe tangentially into said cylinder, substantially as described.

13. In a liquid-spraying apparatus,the combination of a rotary spraying-head adapted to contain the liquid to be sprayed, means for supplying liquid thereto,one or more passages for the discharge of the liquid from said head, and means operated by a part only of the liqro uid supplied to said spraying-head for r0tat-' ing said head, substantially as described.

JOHN P. J OHN bTON.

Witnesses:

EDWARD E. MORRELL, JOHN L. JACKSON. 

